Science & Mathematics - 10 November 2007

There are 4 dice and 2 players are involved in a game. The first player selects 1 of the 4 dice and the second player selects 1 of the next 3. Each player rolls his die and the higher # wins.

The first player selects a die with four 4's & two 0's...he wins 30 tokens every time he wins. Which of the next 3 dice should the second player choose?
-die with all 3's
-die with four 2's & two 6's
-die with three 5's & 3 1's

Why?

2007-11-10 08:54:10 · 4 answers · asked by Anonymous in Mathematics

Which would probably have a mass of about 3 grams?

3 textbooks

3 baseballs

3 paper-clips

3 grains of sand

2007-11-10 08:52:38 · 7 answers · asked by Anonymous in Chemistry

There wasn't enough room to give enough detail in the ? for it to make sense, so I'm elaborating here! LOL I don't know that this has ever been done before, but, my question is hypothetical; I'm wondering what type of protections someone would have to put on a movie camera, to avoid it burning up or being jarred loose, for it to survive being on the outside of a spacebound vehicle (like the Shuttle) while going into space. Let me know if you need more clarification, and I'll put it up. :)

2007-11-10 08:50:02 · 2 answers · asked by Anonymous in Astronomy & Space

An advertising agency claims that 75% of all doctors recommend aspirin over any other pain reliever. If this claim is indeed valid, what is the approximate probability that in a sample of 96 doctors who were interviewed at random and who respond independently less than 60 will recommend aspirin? If in such a survey you actually found out that 58 out of 96 preferred aspirin, what would you think about the genuine nature of the claim? (The first question I already know, but the second I am having trouble with, please help!)

2007-11-10 08:49:00 · 2 answers · asked by shambhalachick 1 in Mathematics

I'm from Southern California and sometimes after one of our seasonal firestorms what can cause up to 500,000 acres of charred brush, I notice the weather shortly thereafter becomes overcast and begins to rain.

2007-11-10 08:47:46 · 3 answers · asked by I'M NOT DEAD YET 2 in Weather

if the earth is spinning, shouldnt we feel the centrifugal force.
at the equator, the centrifugal force would act in the opposite direction to the centrifugal force, so you wouldnt feel it there, but what about, say,the north pole.

i understand that we wouldnt feel any force if the earth was moving in a straight line at a constant speed, but when something moves in a circular way there is always a force

2007-11-10 08:45:40 · 5 answers · asked by John M 1 in Physics

2007-11-10 08:37:45 · 1 answers · asked by Jo Y 1 in Zoology

i need help =[
okay so it's


\5/64x^10 / \5/2x^3

the \/ is the square root sign and the / is a division bar..

basically, it is 64x^10 to the 5th root divided by 2x^3 to the fifth root.

my question is, how do you rationalize the denominator? i know you multiply it by x^2 but do you do anything to the two?

thanks so much

2007-11-10 08:37:21 · 2 answers · asked by kim 2 in Mathematics

what is 30 percent of 270

2007-11-10 08:32:43 · 14 answers · asked by Nicole 2 in Mathematics

2007-11-10 08:27:16 · 4 answers · asked by Anonymous in Mathematics

Michael says that he has an attendance rate of 95%. in a week at college Michael has 15 lessons

a)Michael says that he can use the binomial distribution to model the number of lessons that he attends in a week. Give reasons why he might be correct

b)assuming that michael is correct, find the mean and standard deviation for the number of lessons that he attends in a week

2007-11-10 08:27:11 · 1 answers · asked by Ryujin 3 in Mathematics

2007-11-10 08:25:06 · 4 answers · asked by red_devil07 2 in Medicine

Show that the equidistant set of two points in R^3 is a plane. a) Show that the plane passes through O if the two points are both at distance 1 from O.
b) Deduce from (a) that the equidistant set of two points on S^2 is a "line" (great circle) on S^2. Next, we establish that there is a unique point on S^2 at given distances from three points not in a "line".
c) suppose that two points P,Q belong to S^2 have the same distances from three points A,B,C belong to S^2 not in a "line". Deduce from (b) that P=Q.
d) deduce from (c) that an isometry of S^2 is determinated by the images of three points A,B,C not in a "line".
Thus, it remains to show that the following. Any three points A,B,C beong to S^2 not in a "line" can be mapped to any other three points A',B',C' belong to S^2, which are separated by the same respective distances, by one, two ore three reflections.
Complete this proof o the three reflections theorem

2007-11-10 08:24:27 · 2 answers · asked by bmwm5 1 in Mathematics

Can you please explain why humans are the only ones with umblical cords. Some Scientist say we evolved or what ever they say. They don't believe in God. This is why I don't understand what they are saying. Please anybody who believe please explain it to me. Thank You.

2007-11-10 08:19:57 · 4 answers · asked by SheisShe 1 in Astronomy & Space

can you explain to me why I3- is linear?

thank u very much

2007-11-10 08:13:30 · 3 answers · asked by Ganbatteru 3 in Chemistry

2007-11-10 08:07:42 · 7 answers · asked by Anonymous in Mathematics

yet this question seems simple, i erally want to know how can you prove those things on the photgraph are not other element but H2O??

2007-11-10 08:02:20 · 6 answers · asked by difan c 1 in Astronomy & Space

Proof: 1 + 2 + 3 + ... + 99 = (99*100)/2 please explain also

2007-11-10 07:59:50 · 6 answers · asked by Anonymous in Mathematics

http://i111.photobucket.com/albums/n135/melissue1983/DSCN1964-1.jpg

2007-11-10 07:55:50 · 5 answers · asked by Anonymous in Zoology

this snake was found in the backyard of a suburban louisiana home......my cousin's house actually.......and we dont know where it came from.....is this a real cobra? or just one of those snakes that can flatten its neck?....if anyone knows.....then answer!!! ^_^

http://s238.photobucket.com/albums/ff73/dingomaru/?action=view¤t=snake.jpg

2007-11-10 07:55:38 · 5 answers · asked by Anonymous in Biology

2007-11-10 07:54:52 · 5 answers · asked by Anonymous in Geography

2007-11-10 07:54:34 · 6 answers · asked by Anonymous in Mathematics

The problem you need to verify is:

sin2x = (2tanx)/(1+tan²x)

You must use double angle identities to verify this. Pathagorean identites may also be used.

*Please not that the perenthesis are just there so you can tell what is on the bottom and what is on the top of the fraction.

2007-11-10 07:51:00 · 3 answers · asked by Anonymous in Mathematics

2007-11-10 07:47:45 · 13 answers · asked by Anonymous in Biology

My teacher asked us a very odd Stats question please help !..

How would I figure this out?:


For the following problems:
1. State the Null Hypothesis and the Alternative Hypothesis
2. Determine the test statistic.
3. Determine the P-value
4. Make a decision regarding the hypotheses based on the P-value and the Level of
Significance.

8. In a recent year, some professional baseball players complained that umpires were calling more strikes than the average rate of 61% called the previous year. At one point in the season, umpire Dan Morrison called strikes in 2231 of 3581 pitches (based on data from USA Today). Use a 0.05 significance level to test the claim that his strike rate is greater than 61%.

2007-11-10 07:46:41 · 1 answers · asked by phil m 1 in Mathematics

Given the function f(x)=2x+3, find 2 points, and find the slope between these points.

Please show all the steps because I really want to learn how to do it!!
Thanks

2007-11-10 07:45:57 · 6 answers · asked by ker 2 in Mathematics

it looks almost exactly like a fly except for it has 2 things sticking out of its butt, when i swat at it it doesn't leave...
help??

2007-11-10 07:45:44 · 4 answers · asked by Anonymous in Zoology

i don't really know if my answer -7x(x-7) is right

2007-11-10 07:45:32 · 6 answers · asked by Jessica 1 in Mathematics

Find the velocity of an electron emitted by a metal whose threshold frequency 2.10×10^14 s^-1, when it is exposed to visible light of wavelength 4.89×10^−7

I have been trying to figure this out for so long! can some one Please give me a hand?
Thank you

2007-11-10 07:43:25 · 2 answers · asked by anonymous 2 in Chemistry

This experiment with a gyroscope (like a spinning top) measured the amount of time it took to stop. In the same direction, ie right spin, measured time, right spin, measured time... it took the same amount of time to stop. However when the direction was altered, ie right spin, measured time, left spin, measured time, right spin measured time, left spin... it took longer each time for the gyroscope to stop. When left alone for a certain amount of time, then spun again it still had a longer amount of time to stop. It took a month of the gyroscope not being spun for it to return to its original spinning time.
The experiment didn't result from error as it was done by an experienced physicist who used different materials to make sure the experiment had no fault.
The gyroscope appears to have attributes that make our present perception of mathematics and physics not fully thorough. It appears to escape our present perception of time.
http://www.oswirus.krakow.pl/cat_14/gyroscope/

2007-11-10 07:42:09 · 5 answers · asked by Gist 4 in Astronomy & Space